| San Marino to Hillcrest Heights (Maryland) | 2,289.71 mi (3,684.93 km) |
| San Marino to Hilliard (Ohio) | 1,956.53 mi (3,148.73 km) |
| San Marino to Hillsboro (Oregon) | 828.10 mi (1,332.70 km) |
| San Marino to Hillsborough (California) | 335.88 mi (540.54 km) |
| San Marino to Hillsborough (New Jersey) | 2,403.85 mi (3,868.62 km) |
| San Marino to Hilo (Hawaii) | 2,469.21 mi (3,973.82 km) |
| San Marino to Hilton Head Island (South Carolina) | 2,153.36 mi (3,465.50 km) |
| San Marino to Hinesville (Georgia) | 2,110.42 mi (3,396.39 km) |
| San Marino to Hinsdale (Illinois) | 1,717.54 mi (2,764.12 km) |
| San Marino to Hobart (Indiana) | 1,748.47 mi (2,813.89 km) |
| San Marino to Hobbs (New Mexico) | 866.86 mi (1,395.08 km) |
| San Marino to Hobe Sound (Florida) | 2,296.47 mi (3,695.81 km) |
| San Marino to Hoboken (New Jersey) | 2,435.46 mi (3,919.50 km) |
| San Marino to Hockessin (Delaware) | 2,352.98 mi (3,786.76 km) |
| San Marino to Hoffman Estates (Illinois) | 1,709.04 mi (2,750.44 km) |
